Sometimes when fast forwarding, you inadvertently skip ahead into the show. Even more often, you stop too soon and catch the tail end of the commercial break.
That's exactly what happened while we tried to watch House. I hit the stop button just before the show began, allowing us to hear the last line of a commercial:
Scene: Teenagers shooting baskets
Voice of teen boy: I love my life too much
to risk messing it up by getting pregnant.
The Boy: Dude, if you think you can get pregnant, you've got problems.